php - 使用 in_array() 比较字符串失败

Question

这是我的代码：

<?php



$states = array();
if (($file = fopen("branch.csv", "r")) !== FALSE) {
    while (($state = fgets($file)) !== FALSE) {
         $states[] = $state;
    }
    fclose($file);  
}
print_r($states);


$searchkeyword = "FLORIDA";
if(in_array($searchkeyword, $states)){
    echo "we found " . $searchkeyword  . "\n";
} else {
    echo "we can't found " . $searchkeyword  . "\n";
}
?>

这是结果：

Array
(
    [0] => FLORIDA

    [1] => CHICAGO
)
we can't found FLORIDA

在我看来一切正常，我可以看到数组的第一个元素是 FLORIDA，但 in_array() 找不到 FLORIDA。我可能错过了一些东西。